Traffic Volume Trends - August 2007

Based on preliminary reports from the State Highway Agencies, travel during August 2007 on all roads and streets in the nation changed by 1.6 percent resulting in estimated travel for the month at 269.3** billion vehicle-miles.

This total includes 94.7 billion vehicle-miles on rural roads and 174.6 billion vehicle-miles on urban roads and streets.

Cumulative Travel changed by 0 percent.

Travel for the current month, the cumulative yearly total, as well as the moving 12-month total on all roads and streets is shown below. Similar totals for each year since 1982 are also included.

Travel in Millions of Vehicle Miles
All Roads and Streets

Year

August

Year to Date

Moving 12-Month

1982

153,300

1,063,190

1,576,815

1983

157,649

1,101,649

1,630,940

1984

164,920

1,149,718

1,697,177

1985

169,437

1,187,295

1,754,347

1986

173,977

1,225,904

1,813,371

1987

177,378

1,282,053

1,894,389

1988

184,503

1,351,281

1,993,556

1989

194,172

1,409,867

2,084,172

1990

197,057

1,446,267

2,143,440

1991

204,063

1,457,700

2,158,934

1992

204,753

1,503,029

2,217,543

1993

209,634

1,535,998

2,280,121

1994

215,045

1,571,053

2,331,760

1995

219,216

1,624,692

2,411,226

1996

229,050

1,657,838

2,455,922

1997

233,496

1,715,864

2,540,227

1998

237,143

1,749,898

2,594,407

1999

241,503

1,778,200

2,653,665

2000

247,769

1,841,808

2,743,066

2001

253,002

1,868,284

2,773,401

2002

258,360

1,911,676

2,839,001

2003

260,179

1,926,826

2,870,658

2004

262,474

1,981,485

2,945,109

2005

267,071

2,009,502

2,990,509

2006

265,158

2,005,250

2,988,488

2007

269,297

2,005,316

2,996,501

Traffic Volume Trends is a monthly report based on hourly traffic count data. These data, collected at approximately 4,000 continuous traffic counting locations nationwide, are used to determine the percent change in traffic for the current month compared to the same month in the previous year. This percent change is applied to the travel for the same month of the previous year to obtain an estimate of travel for the current month. Because of the limited sample sizes, caution should be used with these estimates. The Highway Performance Monitoring System provides more accurate information on an annual basis.

** System entries may not add up to given "All Systems" total due to rounding for Page 2 to 8.